Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6ae6abd02cbde61…

MALICIOUS

PDF

49.9 KB Created: 2020-08-19 06:19:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b5b499ac5287316363ddff4028095f2 SHA-1: 5078249e3c50a011f097aba3b13c820b9d3ec4e3 SHA-256: b6ae6abd02cbde6142b3d6da93fd19c2621b481e51082a9601f144b6d556a334
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass external link farm, with many links pointing to benign Shopify URLs but one critical link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to software cracking and the malicious URL, suggesting a lure for users seeking cracked software. The redirector URL is the primary indicator of malicious intent, likely leading to further malware delivery.

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=wondershare+data+recovery+for+android+full+crack
    • http://xebevaje.rorymichelle.com/uploads/1/3/0/9/130969191/ririgamuse.pdf
    • http://zutaboma.dplpoker.com/uploads/1/3/1/6/131636664/xibumokonugekawo.pdf
    • http://rulamip.indianlandsocceracademy.com/uploads/1/3/2/8/132814930/rigusifagomo.pdf
    • http://vogif.clairehinchman.com/uploads/1/3/1/3/131380600/125feaa9434.pdf
    • https://cdn.shopify.com/s/files/1/0436/9681/6282/files/how_to_cancel_apple_music_subscription_android.pdf
    • https://cdn.shopify.com/s/files/1/0431/0866/3462/files/soginizule.pdf
    • https://cdn.shopify.com/s/files/1/0432/7079/9510/files/jilubotot.pdf
    • https://cdn.shopify.com/s/files/1/0435/1374/1471/files/nizutulilolijaxexigivubo.pdf
    • https://cdn.shopify.com/s/files/1/0429/3961/3347/files/convert_base64_to_python.pdf
    • https://cdn.shopify.com/s/files/1/0431/4575/6821/files/norma_aisi_316.pdf
    • https://cdn.shopify.com/s/files/1/0433/6071/4904/files/kulawojabaxomulanitikexu.pdf
    • https://cdn.shopify.com/s/files/1/0434/3057/6285/files/23992204512.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007714.bin
8c8b6496a6234fb6578a684fb3880a263aeca458d4942d6afd6216f29bcedeb1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7714 5232 bytes
font_01_sfnt_off000088e6.bin
7212fc19abdc144883d054304805fbb2f7bf20234e9d4bca3c84690215f3b5da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88E6 10368 bytes
font_02_sfnt_off0000ac59.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAC59 4324 bytes

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